This Part Fits the following kits / parts:

#15436 - PISTON SET (0.7mm PISTON RING/23cc)

Fuelie 23 Engine/ Increases Engine Throttle Response

Improve the engine throttle response of your Baja 5B with this
amazing Piston Set! This engine upgrade is perfect for racers as
well as 'bashers', because of the increased power you'll get from
the engine!

Don't get left behind at the track - install this now to get the
jump on your racing buddies!